title: Monoclonal antibody studies on the evolutionary relationships of Ia antigens.
mesh_terms: D000042:Absorption; D000818:Animals; D000906:Antibodies; D000911:Antibodies, Monoclonal; D001666:Binding Sites, Antibody; D005075:Biological Evolution; D002025:Bufonidae; D002415:Cats; D002645:Chickens; D006224:Cricetinae; D003429:Cross Reactions; D004285:Dogs; D006168:Guinea Pigs; D000949:Histocompatibility Antigens Class II; D006801:Humans; D051379:Mice; D011817:Rabbits; D051381:Rats; D011917:Rats, Inbred Lew; D011961:Receptors, Fc; D012756:Sheep; D013552:Swine
chemical_list: D000906:Antibodies; D000911:Antibodies, Monoclonal; D000949:Histocompatibility Antigens Class II; D011961:Receptors, Fc